Home / 308,381.03-425,582.07-187,502.30

Finding the Fourth Proportional to 308,381.03, 425,582.07 and 187,502.30

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Solution

The fourth proportional to 308,381.03, 425,582.07 and 187,502.30 is: 258,763.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,381.03 : 425,582.07 = 187,502.30 : x
  2. Step 2: Convert to fraction form
    308,381.03/425,582.07 = 187,502.30/x
  3. Step 3: Cross multiply
    308,381.03x = 425,582.07 × 187,502.30
  4. Step 4: Simplify right side
    308,381.03x = 79,797,616,963.76
  5. Step 5: Solve for x
    x = 79,797,616,963.76/308,381.03
  6. Step 6: Final answer
    x = 258,763.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.